CN110160952A - Interior Friction tester - Google Patents
Interior Friction tester Download PDFInfo
- Publication number
- CN110160952A CN110160952A CN201910428479.1A CN201910428479A CN110160952A CN 110160952 A CN110160952 A CN 110160952A CN 201910428479 A CN201910428479 A CN 201910428479A CN 110160952 A CN110160952 A CN 110160952A
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- Prior art keywords
- discharging
- shear box
- box
- speed reducer
- shearing
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- 238000007599 discharging Methods 0.000 claims abstract description 83
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 43
- 238000010008 shearing Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to the technical fields of auxiliary equipment can test the coefficient of internal friction of material under different pressures, material shapes parameter more particularly to a kind of interior Friction tester, reduce and use limitation；Including frame, shear box, unload magazine, press perpendicular device, shear transmission device, counter-force bracket and temperature control equipment, frame includes bottom plate, upper plate, central sill and four groups of pillars, the left front end of central sill, left back end, right front ends and right rear end are provided with linear bearing, the bottom end for unloading magazine is provided with discharging box orbit component, shearing transmission device includes horizontal drive motor, horizontal speed reducer, shear force sensor and horizontal conveyor lead screw, press perpendicular device includes normal force driving motor, normal force speed reducer, normal force transducer, normal direction turn-screw and pressure head, shear box includes upper shear box and lower shear box, and shearing box orbit is provided between upper shear box and lower shear box.
Description
Technical field
The present invention relates to the technical fields of auxiliary equipment, more particularly to a kind of interior Friction tester.
Background technique
It is well known that interior friction test is also referred to as " direct shear test ", with direct shear apparatus (referred to as " direct shear apparatus ") to plastics
Grain does shearing test, to measure the test method of the coefficient of friction of particle, sample is placed in box and activity in the fixation of direct shear apparatus
In lower box, when test, first applies pressure at right angle on sample, then applies horizontal thrust to lower box, and the changing of the relative positions between upper and lower box makes
Soil sample sheared destruction determines that the coefficient of friction of a certain kind sample generallys use 3 samples, surveys under the effect of identical pressure at right angle
Corresponding shearing strength out finds in existing interior Friction tester use process with finding out the coefficient of friction of sample, can only
The coefficient of internal friction of material under specified pressure, material shapes is tested, is caused higher using limitation.
Summary of the invention
In order to solve the above technical problems, the present invention provide it is a kind of can be to material under different pressures, material shapes parameter
Coefficient of internal friction is tested, and the interior Friction tester for using limitation is reduced.
Interior Friction tester of the invention, including frame, shear box, unload magazine, press perpendicular device, shearing transmission dress
Set, counter-force bracket and temperature control equipment, the frame includes bottom plate, upper plate, central sill and four groups of pillars, the central sill it is left front
End, left back end, right front ends and right rear end are provided with installation through-hole up and down, and the fixed peace in four groups of installation through-holes
Equipped with linear bearing, the bottom ends of four groups of pillars from the top of central sill be each passed through four groups of linear bearings and respectively with base top
Front left side, forward right side, the left rear side at end are connected with right lateral side, the top of four groups of pillars respectively with the front left side of upper plate bottom end, the right side
Front side, left rear side are connected with right lateral side, and the bottom end for unloading magazine is provided with discharging box orbit component, are unloaded magazine and are unloaded by described
Magazine rail assembly is slideably positioned on bottom plate, and the shearing transmission device includes horizontal drive motor, horizontal speed reducer and cuts
Shear force sensor, the horizontal speed reducer is installed on the output end of horizontal drive motor, and sets in the output end of horizontal speed reducer
Be equipped with horizontal conveyor lead screw, the left end of horizontal conveyor lead screw is connect with shear force sensor, the left end of shear force sensor with unload
The right end of magazine connects, and the press perpendicular device includes normal force driving motor, normal force speed reducer and normal force transducer,
The normal force speed reducer is installed on the top of upper plate and is located at the output end of normal force driving motor, and in normal force speed reducer
Bottom output end be provided with normal direction turn-screw, the bottom output end of normal direction turn-screw and the top of central sill connect, normal direction
Force snesor is installed on the bottom end of central sill, and is equipped with pressure head, one end sliding of counter-force bracket in the bottom end of normal force transducer
It is installed on pillar, the shear box includes upper shear box and lower shear box, and is arranged between upper shear box and lower shear box
There are shearing box orbit, upper shear box and lower shear box to slide laterally by the shearing box orbit, upper shear box is installed on counter-force
On bracket, lower shear box is installed on the top for unloading magazine.
Interior Friction tester of the invention, the temperature control equipment include constant temperature water tank, circulating pump and return pipe, described
Constant temperature water tank is internally provided with heating tube, refrigeration pipeline and temperature sensor, the input terminal and constant temperature water tank of the circulating pump
Connection, the output end of circulating pump stretch in shear box, and the both ends of the return pipe are connected to shearing and with constant temperature water tank respectively,
And valve is provided on return pipe.
Interior Friction tester of the invention, the shearing box orbit between the upper shear box and lower shear box is using miniature straight
Trajectory.
Interior Friction tester of the invention, described unload are provided with for collecting the collection support for spilling blanking above magazine
Disk, the Internal back end for unloading magazine are provided with discharging inclined plate, and the front bottom end for unloading magazine is provided with discharging drawer, and in discharging drawer
Discharging valve plate is provided between discharging inclined plate, the bottom end of bottom plate is provided with discharging motor, discharging speed reducer and discharging sensor,
Discharging speed reducer is installed on the output end of discharging motor, and one end of discharging sensor and the output end of discharging speed reducer are driven and connect
It connects, the other end of discharging sensor is connect with discharging valve plate.
Interior Friction tester of the invention, the front end for unloading magazine are provided with see-through window, and the see-through window is located at
The top of discharging drawer.
Interior Friction tester of the invention, further includes upper shroud and lower part shield, and the upper shroud is installed on upper plate
Top, the normal force speed reducer is located in the upper shroud, and the lower part shield is installed on the bottom end of bottom plate, described to unload
Material motor and discharging speed reducer are respectively positioned in the shield of lower part.
Interior Friction tester of the invention, is provided with expansion loop between the pressure head and shear box.
Compared with prior art the invention has the benefit that sample is placed in shear box, pass through press perpendicular device
Pressure is applied to upper shear box, is detected by pressure size of the normal force transducer to application, shearing transmission is then passed through
Device drives discharging box and the sliding of lower shear box level, is detected by size of the shear force sensor to horizontal shear,
By several samples to same material respectively different vertical pressure effect under, cut along fixed shear surface application level
Power obtains the coefficient of friction of sample, can test the coefficient of internal friction of material under different pressures, material shapes parameter,
The precision of test result is improved, reduces and uses limitation.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is whole structural schematic diagram of the invention；
Fig. 3 is the right side structural representation of Fig. 1 of the present invention；
Fig. 4 is partial enlargement structural representation at the A of Fig. 1 of the present invention；
It is attached marked in the figure: 1, unload magazine；2, counter-force bracket；3, temperature control equipment；4, bottom plate；5, upper plate；6, central sill；7,
Pillar；8, linear bearing；9, discharging box orbit component；10, horizontal drive motor；11, horizontal speed reducer；12, shearing force senses
Device；13, normal force driving motor；14, normal force speed reducer；15, normal force transducer；16, normal direction turn-screw；17, pressure head；
18, upper shear box；19, lower shear box；20, box orbit is sheared；21, collection tray；22, discharging inclined plate；23, discharging drawer；24,
Discharging valve plate；25, discharging motor；26, discharging speed reducer；27, discharging sensor；28, see-through window；29, upper shroud；30,
Lower part shield；31, expansion loop.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figures 1 to 4, interior Friction tester of the invention, including frame, shear box, unload magazine 1, press perpendicular
Device, shearing transmission device, counter-force bracket 2 and temperature control equipment 3, frame include bottom plate 4, upper plate 5, central sill 6 and four groups of branch
Column 7, the left front end of central sill 6, left back end, right front ends and right rear end are provided with installation through-hole up and down, and in four groups of peaces
It is fixedly installed with linear bearing 8 in dress through-hole, the top of bottom end from the central sill 6 of four groups of pillars 7 is each passed through four groups of linear axis
Hold 8 and connect respectively with front left side, forward right side, left rear side and the right lateral side on 4 top of bottom plate, the top of four groups of pillars 7 respectively with
Front left side, forward right side, the left rear side of 5 bottom end of upper plate are connected with right lateral side, and the bottom end for unloading magazine 1 is provided with discharging box orbit component
9, unload magazine 1 and be slideably positioned on bottom plate 4 by discharging box orbit component 9, shearing transmission device include horizontal drive motor 10,
Horizontal speed reducer 11 and shear force sensor 12, horizontal speed reducer 11 are installed on the output end of horizontal drive motor 10, and in water
The output end of flat speed reducer 11 is provided with horizontal conveyor lead screw, and the left end of horizontal conveyor lead screw is connect with shear force sensor 12,
The left end of shear force sensor 12 is connect with the right end for unloading magazine 1, and press perpendicular device includes normal force driving motor 13, normal direction
Power speed reducer 14 and normal force transducer 15, normal force speed reducer 14 are installed on the top of upper plate 5 and are located at normal direction power drive electricity
The output end of machine 13, and the bottom output end of normal force speed reducer 14 is provided with normal direction turn-screw 16, normal direction turn-screw
16 bottom output end is connect with the top of central sill 6, and normal force transducer 15 is installed on the bottom end of central sill 6, and passes in normal force
The bottom end of sensor 15 is equipped with pressure head 17, and one end of counter-force bracket 2 is slidably mounted on pillar 7, and shear box includes upper shear box
18 and lower shear box 19, and shearing box orbit 20, upper 18 He of shear box are provided between upper shear box 18 and lower shear box 19
Lower shear box 19 is slid laterally by shearing box orbit 20, and upper shear box 18 is installed on counter-force bracket 2, and lower shear box 19 is installed
In the top for unloading magazine 1；Sample is placed in shear box, pressure is applied to upper shear box by press perpendicular device, passes through method
It is detected to pressure size of the force snesor to application, magazine and lower shear box is then unloaded by shearing transmission device drive
Level sliding, is detected by size of the shear force sensor to horizontal shear, passes through several samples to same material
Respectively under the effect of different vertical pressure, applies horizontal shear along fixed shear surface, obtain the coefficient of friction of sample, it can be right
The coefficient of internal friction of material is tested under different pressures, material shapes parameter, improves the precision of test result, is reduced and is used office
It is sex-limited.
Interior Friction tester of the invention, temperature control equipment 3 include constant temperature water tank, circulating pump and return pipe, thermostatted water
Case is internally provided with heating tube, refrigeration pipeline and temperature sensor, and the input terminal of circulating pump is connected to constant temperature water tank, circulating pump
Output end stretch in shear box, the both ends of return pipe respectively with shearing and be connected to constant temperature water tank, and set on return pipe
It is equipped with valve；Guarantee that water temperature is constant in constant temperature water tank, passes through circulation by the cooperation of heating tube, refrigeration pipeline and temperature sensor
Pump pumps warm water to the uniform of specimen temperature is guaranteed in shear box, the water in shear box can be sent Hui Heng by return pipe
In reservoir.
Interior Friction tester of the invention, the shearing box orbit 20 between upper shear box 18 and lower shear box 19 is using miniature
Rectilinear orbit；Both it ensure that the straightness of shear box while having also ensured the concentricity of upper and lower shear box.
Interior Friction tester of the invention, the top for unloading magazine 1 are provided with for collecting the collection tray 21 for spilling blanking,
The Internal back end for unloading magazine 1 is provided with discharging inclined plate 22, and the front bottom end for unloading magazine 1 is provided with discharging drawer 23, and in discharging
Discharging valve plate 24 is provided between drawer 23 and discharging inclined plate 22, the bottom end of bottom plate 4 is provided with discharging motor 25, discharging speed reducer
26 and discharging sensor 27, discharging speed reducer 26 is installed on the output end of discharging motor 25, one end of discharging sensor 27 with unload
Expect the output end transmission connection of speed reducer 26, the other end of discharging sensor 27 is connect with discharging valve plate 24；It overflows and scatters material and fall into
In collection tray, discharging valve plate can be controlled, be unloaded by the cooperation of discharging motor, discharging speed reducer and discharging sensor
Expect that valve plate opens the through-hole on collection tray, the blanking in collection tray falls on discharging inclined plate and falls by discharging inclined plate
It is convenient that blanking is collected in discharging drawer.
Interior Friction tester of the invention, the front end for unloading magazine 1 are provided with see-through window 28, and see-through window 28 is located at discharging
The top of drawer 23；The blanking unloaded in magazine is observed by the way that see-through window is convenient.
Interior Friction tester of the invention, further includes upper shroud 29 and lower part shield 30, and upper shroud 29 is installed on
The top of plate 5, normal force speed reducer 14 are located in upper shroud 29, and lower part shield 30 is installed on the bottom end of bottom plate 4, discharging motor
25 and discharging speed reducer 26 be respectively positioned in lower part shield 30；Normal force speed reducer can be protected, be led to by upper shroud
Discharging motor, discharging speed reducer can be protected by crossing lower part shield.
Interior Friction tester of the invention, is provided with expansion loop 31 between pressure head 17 and shear box；By the way that ring set will be expanded
On pressure head, effective contact area between pressure head and upper shear box is improved.
Interior Friction tester of the invention before completing above-mentioned movement, is moved into user at work first
The position needed, sample is placed in shear box, is applied pressure to upper shear box by press perpendicular device, is passed by normal force
Sensor detects the pressure size of application, then unloads magazine by shearing transmission device drive and lower shear box level is sliding
It is dynamic, it is detected by size of the shear force sensor to horizontal shear, is existed respectively by several samples to same material
Under different vertical pressure effect, applies horizontal shear along fixed shear surface, obtain the coefficient of friction of sample, it can be to different pressures
The coefficient of internal friction of material is tested under power, material shapes parameter, improves the precision of test result, is reduced and is used limitation,
Guarantee that water temperature is constant in constant temperature water tank by the cooperation of heating tube, refrigeration pipeline and temperature sensor, by circulating pump by warm water
It pumps to the uniform of specimen temperature is guaranteed in shear box, the water in shear box can be sent back by constant temperature water tank by return pipe
It is interior, it overflows and scatters material and fall into collection tray, it can be to discharging by the cooperation of discharging motor, discharging speed reducer and discharging sensor
Valve plate is controlled, and discharging valve plate opens the through-hole on collection tray, and the blanking in collection tray is fallen on discharging inclined plate simultaneously
It is fallen into discharging drawer by discharging inclined plate, it is convenient that blanking is collected, it is convenient to unloading falling in magazine by see-through window
Material observed, normal force speed reducer can be protected by upper shroud, by lower part shield can to discharging motor,
Discharging speed reducer is protected, and by that will expand ring set on pressure head, improves effective contact surface between pressure head and upper shear box
Product.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of interior Friction tester, which is characterized in that including frame, shear box, unload magazine (1), press perpendicular device, shearing
Transmission device, counter-force bracket (2) and temperature control equipment (3), the frame include bottom plate (4), upper plate (5), central sill (6) and four
Group pillar (7), it is logical that left front end, left back end, right front ends and the right rear end of the central sill (6) are provided with installation up and down
Hole, and linear bearing (8) are fixedly installed in four groups of installation through-holes, the bottom ends of four groups of pillars (7) is from central sill (6)
Top is each passed through four groups of linear bearings (8) and respectively front left side, forward right side, left rear side and the right lateral side with bottom plate (4) top
Connection, the top of four groups of pillars (7) are connect with the front left side, forward right side, left rear side and right lateral side of upper plate (5) bottom end respectively, institute
It states and unloads the bottom end of magazine (1) and be provided with discharging box orbit component (9), unloading magazine (1), to pass through the discharging box orbit component (9) sliding
Dynamic to be set on bottom plate (4), the shearing transmission device includes horizontal drive motor (10), horizontal speed reducer (11) and shearing force
Sensor (12), the horizontal speed reducer (11) are installed on the output end of horizontal drive motor (10), and in horizontal speed reducer
(11) output end is provided with horizontal conveyor lead screw, and the left end of horizontal conveyor lead screw is connect with shear force sensor (12), shearing
The left end of force snesor (12) is connect with the right end for unloading magazine (1), and the press perpendicular device includes normal force driving motor
(13), normal force speed reducer (14) and normal force transducer (15), the normal force speed reducer (14) are installed on the top of upper plate (5)
End and the output end for being located at normal force driving motor (13), and the bottom output end of normal force speed reducer (14) is provided with normal direction
The bottom output end of turn-screw (16), normal direction turn-screw (16) is connect with the top of central sill (6), normal force transducer (15)
It is installed on the bottom end of central sill (6), and is equipped with pressure head (17) in the bottom end of normal force transducer (15), the one of counter-force bracket (2)
End is slidably mounted on pillar (7), and the shear box includes upper shear box (18) and lower shear box (19), and in upper shear box
(18) shearing box orbit (20), upper shear box (18) and lower shear box (19) are provided between lower shear box (19) described in
Shearing box orbit (20) slides laterally, and upper shear box (18) is installed on counter-force bracket (2), and lower shear box (19) is installed on discharging
The top of box (1).
2. Friction tester in as described in claim 1, which is characterized in that the temperature control equipment (3) includes thermostatted water
Case, circulating pump and return pipe, the constant temperature water tank is internally provided with heating tube, refrigeration pipeline and temperature sensor, described to follow
The input terminal of ring pump is connected to constant temperature water tank, and the output end of circulating pump stretches in shear box, the both ends difference of the return pipe
It is connected to shearing and with constant temperature water tank, and is provided with valve on return pipe.
3. Friction tester in as claimed in claim 2, which is characterized in that the upper shear box (18) and lower shear box (19)
Between shearing box orbit (20) use miniature rectilinear orbit.
4. Friction tester in as claimed in claim 3, which is characterized in that it is described unload to be provided with above magazine (1) be used for
The collection tray (21) for spilling blanking is collected, the Internal back end for unloading magazine (1) is provided with discharging inclined plate (22), unloads magazine (1)
Front bottom end is provided with discharging drawer (23), and is provided with discharging valve plate between discharging drawer (23) and discharging inclined plate (22)
(24), the bottom end of bottom plate (4) is provided with discharging motor (25), discharging speed reducer (26) and discharging sensor (27), and discharging is slowed down
Machine (26) is installed on the output end of discharging motor (25), one end of discharging sensor (27) and the output end of discharging speed reducer (26)
Transmission connection, the other end of discharging sensor (27) are connect with discharging valve plate (24).
5. Friction tester in as claimed in claim 4, which is characterized in that the front end for unloading magazine (1) is provided with perspective
Window (28), the see-through window (28) are located at the top of discharging drawer (23).
6. Friction tester in as claimed in claim 5, which is characterized in that further include upper shroud (29) and lower part shield
(30), the upper shroud (29) is installed on the top of upper plate (5), and the normal force speed reducer (14) is located at the upper shroud
(29) in, the lower part shield (30) is installed on the bottom end of bottom plate (4), and the discharging motor (25) and discharging speed reducer (26) are equal
In lower part shield (30).
7. Friction tester in as claimed in claim 6, which is characterized in that be provided between the pressure head (17) and shear box
Expansion loop (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428479.1A CN110160952A (en) | 2019-05-22 | 2019-05-22 | Interior Friction tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428479.1A CN110160952A (en) | 2019-05-22 | 2019-05-22 | Interior Friction tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110160952A true CN110160952A (en) | 2019-08-23 |
Family
ID=67631837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910428479.1A Pending CN110160952A (en) | 2019-05-22 | 2019-05-22 | Interior Friction tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110160952A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638126A (en) * | 2020-05-20 | 2020-09-08 | 哈尔滨工业大学 | Experimental device for testing friction self-excited vibration of rubber material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207436A (en) * | 2010-07-26 | 2011-10-05 | 水利部交通运输部国家能源局南京水利科学研究院 | High performance direct shearing apparatus for large contact surfaces |
| CN102230868A (en) * | 2011-03-30 | 2011-11-02 | 长安大学 | Temperature controlled direct shear device |
| CN102313673A (en) * | 2011-08-04 | 2012-01-11 | 北京交通大学 | Full-automatic, digital and large frozen soil direct shear apparatus |
| CN208383626U (en) * | 2018-05-03 | 2019-01-15 | 南昌大学 | A kind of multifunctional large-scale temperature control saturation staight scissors simple shear double-purpose instrument |
| CN109632529A (en) * | 2018-12-04 | 2019-04-16 | 北京工业大学 | Large-sized multifunction ring shear apparatus |
| CN209979467U (en) * | 2019-05-22 | 2020-01-21 | 臧祥力 | Internal friction tester |
-
2019
- 2019-05-22 CN CN201910428479.1A patent/CN110160952A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207436A (en) * | 2010-07-26 | 2011-10-05 | 水利部交通运输部国家能源局南京水利科学研究院 | High performance direct shearing apparatus for large contact surfaces |
| CN102230868A (en) * | 2011-03-30 | 2011-11-02 | 长安大学 | Temperature controlled direct shear device |
| CN102313673A (en) * | 2011-08-04 | 2012-01-11 | 北京交通大学 | Full-automatic, digital and large frozen soil direct shear apparatus |
| CN208383626U (en) * | 2018-05-03 | 2019-01-15 | 南昌大学 | A kind of multifunctional large-scale temperature control saturation staight scissors simple shear double-purpose instrument |
| CN109632529A (en) * | 2018-12-04 | 2019-04-16 | 北京工业大学 | Large-sized multifunction ring shear apparatus |
| CN209979467U (en) * | 2019-05-22 | 2020-01-21 | 臧祥力 | Internal friction tester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638126A (en) * | 2020-05-20 | 2020-09-08 | 哈尔滨工业大学 | Experimental device for testing friction self-excited vibration of rubber material |
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